Hemorrhagic Shock
Mostrando 13-24 de 131 artigos, teses e dissertações.
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13. Post-hemorrhagic shock mesenteric lymph is an important contributor to cardiac dysfunction following hemorrhagic shock
PURPOSE:To evaluate whether post-hemorrhagic shock mesenteric lymph (PSML) is involved in cardiac dysfunction induced by hemorrhagic shock.METHODS: The hemorrhagic shock model (40±2 mmHg, 3h) was established in rats of the shock and shock+drainage groups; and PSML drainage was performed from hypotension 1-3h in the shock+drainage rats. Then, the isolated he
Acta Cir. Bras.. Publicado em: 2015-06
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14. Hydrogen sulfide in posthemorrhagic shock mesenteric lymph drainage alleviates kidney injury in rats
Posthemorrhagic shock mesenteric lymph (PHSML) is a key factor in multiple organ injury following hemorrhagic shock. We investigated the role of hydrogen sulfide (H2S) in PHSML drainage in alleviating acute kidney injury (AKI) by administering D,L-propargylglycine (PPG) and sodium hydrosulfide hydrate (NaHS) to 12 specific pathogen-free male Wistar rats with
Braz J Med Biol Res. Publicado em: 28/04/2015
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15. Reduction of contractility and reactivity in isolated lymphatics from hemorrhagic shock rats with resuscitation
PURPOSE:To evaluate the changes of contractility and reactivity in isolated lymphatics from hemorrhagic shock rats with resuscitation.METHODS: Six rats in the shock group suffered hypotension for 90 min by hemorrhage, and resuscitation with shed blood and equal ringer's solution. Then, the contractility of lymphatics, obtained from thoracic ducts in rats of
Acta Cir. Bras.. Publicado em: 2015-03
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16. Therapeutic effects of compound hypertonic saline on rats with sepsis
Sepsis is one of the major causes of death and is the biggest obstacle preventing improvement of the success rate in curing critical illnesses. Currently, isotonic solutions are used in fluid resuscitation technique. Several studies have shown that hypertonic saline applied in hemorrhagic shock can rapidly increase the plasma osmotic pressure, facilitate the
Braz J Infect Dis. Publicado em: 2014-09
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17. Evaluation of the traditional and revised world health organization classifications of dengue cases in Brazil
OBJECTIVE: Dengue is a worldwide public health problem with approximately 50 million cases reported annually. The World Health Organization proposed a revised classification system in 2008 to more effectively identify the patients who are at increased risk of complications from dengue. Few studies have validated this new classification system in clinical pr
Clinics. Publicado em: 2013-10
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18. Myosin light chain kinase is necessary for post-shock mesenteric lymph drainage enhancement of vascular reactivity and calcium sensitivity in hemorrhagic-shocked rats
Vascular hyporeactivity is an important factor in irreversible shock, and post-shock mesenteric lymph (PSML) blockade improves vascular reactivity after hemorrhagic shock. This study explored the possible involvement of myosin light chain kinase (MLCK) in PSML-mediated vascular hyporeactivity and calcium desensitization. Rats were divided into sham (n=12), s
Braz J Med Biol Res. Publicado em: 30/07/2013
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19. Role of protein kinase G on the post-shock mesenteric lymph blockage ameliorating vascular calcium sensitivity
PURPOSE: To investigate the role of protein kinase G (PKG) in blocking post-shock mesenteric lymph (PSML) return ameliorating the calcium sensitivity in hemorrhagic shock rats. METHODS: Male Wistar rats were randomly divided into sham, shock, shock+ligation (shock plus mesenteric lymph duct ligation (MLDL)), shock+drainage (shock plus PSML drainage) groups.
Acta Cir. Bras.. Publicado em: 2013-07
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20. Evaluation of hemodynamic effects of xenon in dogs undergoing hemorrhagic shock
OBJECTIVES: The anesthetic gas xenon is reported to preserve hemodynamic stability during general anesthesia. However, the effects of the gas during shock are unclear. The objective of this study was to evaluate the effect of Xe on hemodynamic stability and tissue perfusion in a canine model of hemorrhagic shock. METHOD: Twenty-six dogs, mechanically ventila
Clinics. Publicado em: 2013
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21. Involvement of catecholaminergic medullary pathways in cardiovascular responses to acute changes in circulating volume
Water deprivation and hypernatremia are major challenges for water and sodium homeostasis. Cellular integrity requires maintenance of water and sodium concentration within narrow limits. This regulation is obtained through engagement of multiple mechanisms and neural pathways that regulate the volume and composition of the extracellular fluid. The purpose of
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-09
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22. Impact of Plasma-Lyte pH 7.4 on acid-base status and hemodynamics in a model of controlled hemorrhagic shock
OBJECTIVE: Intravenous infusion of crystalloid solutions is a cornerstone of the treatment of hemorrhagic shock. However, crystalloid solutions can have variable metabolic acid-base effects, perpetuating or even aggravating shock-induced metabolic acidosis. The aim of this study was to compare, in a controlled volume-driven porcine model of hemorrhagic shock
Clinics. Publicado em: 2011
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23. Hemoperitoneum in a Dog with Hepatic Splenosis
Background: Ectopic splenic tissue results from the autotransplantation and seeding of splenic tissue, often secondary to splenic trauma or splenectomy. Splenic implantations occur mostly as nodules within the peritoneal cavity and constitute an incidental finding at necropsy, surgery, or imaging investigations. This report addresses a case of hemoperitoneum
Publicado em: 2011
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24. Rabbit model of uncontrolled hemorrhagic shock and hypotensive resuscitation
Clinically relevant animal models capable of simulating traumatic hemorrhagic shock are needed. We developed a hemorrhagic shock model with male New Zealand rabbits (2200-2800 g, 60-70 days old) that simulates the pre-hospital and acute care of a penetrating trauma victim in an urban scenario using current resuscitation strategies. A laparotomy was performed
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-12